#include<stdio.h>
#include<mpi.h>

int main(int argc, char **argv)
{
	int myid, numprocs;
	double start, finish;
	
	MPI_Init(&argc, &argv);

    MPI_Comm_rank(MPI_COMM_WORLD, &myid);
    MPI_Comm_size(MPI_COMM_WORLD, &numprocs);

	//your code here
	start = MPI_Wtime();
	
	printf("The precision is: %f\n", MPI_Wtick());
	
	finish = MPI_Wtime();
	//your code here
	
	printf("Hello World!I'm rank %d of %d, running %f seconds.\n", myid, numprocs, finish-start);

	MPI_Finalize();
	return 0;
}
